body{
    background-color: #f8f8f8;
}

/* 首页横线 */
.head-nav .cent .fourth{
    width: 15px;
    padding-bottom: 25px;
    border-bottom: 3px solid #fff;
}
.banner{
    height: 320px;
    background-color: rgba(0, 0, 0,0.7);
}


/* canvas插件 */

.canvas{
    z-index: 0;
    /* height: 400px; */
    /* background-color: #f1f1f1; */
    position: relative;
    top: -310px;
    
}






.main1{
    width: 1200px;
    height: 270px;
    position: absolute;
    top: 166px;
    
}
.main1 img{
    width: 600px;
    height: 270px;
}
.main1 .main1-left{
    width: 600px;
    height: 270px;
    background-color: #fff;
    box-sizing: border-box;
    padding: 30px;
}
.main1 .main1-left img{
    width: 200px;
    height: 48px;
}







.main2{
    margin-top: 130px;
    /* width: 1200px; */
    height: 260px;
    box-sizing: border-box;
    padding: 30px;
    position: relative;
}
.main2 img{
    margin-bottom: 30px;
    
}
.main2 .main2-right{
    margin-top: 30px;
    text-align: right;
    
}
.main2 span{
    width: 20px;
    height: 3px;
    background-color: #1271ef;
    position: absolute;
    right: 138px;
    bottom: 38px;
}



.main3{
    margin-top: 30px;
    /* width: 1200px; */
    /* height: 240px; */
    box-sizing: border-box;
    padding: 30px;
}
.main3 img{
    width: 1140px;
    margin: 50px 0 100px 0
    
}